diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/float/rounding.rb')
-rw-r--r-- | activesupport/lib/active_support/core_ext/float/rounding.rb | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/float/rounding.rb b/activesupport/lib/active_support/core_ext/float/rounding.rb new file mode 100644 index 0000000000..989b1f8f80 --- /dev/null +++ b/activesupport/lib/active_support/core_ext/float/rounding.rb @@ -0,0 +1,22 @@ +module ActiveSupport #:nodoc: + module CoreExtensions #:nodoc: + module Float #:nodoc: + module Rounding + def self.included(base) #:nodoc: + base.send(:alias_method, :round_without_precision, :round) + base.send(:alias_method, :round, :round_with_precision) + end + + # Rounds the float with the specified precision. + # + # x = 1.337 + # x.round # => 1 + # x.round(1) # => 1.3 + # x.round(2) # => 1.34 + def round_with_precision(precision = nil) + precision.nil? ? round_without_precision : (self * (10 ** precision)).round / (10 ** precision).to_f + end + end + end + end +end |